Alternative, but expensive, energy transition scenario featuring carbon capture and utilization can preserve existing energy demand technologies

18933 7 102279 2 312206 document 102279 PIIS2590332223003019.pdf application/pdf 5213b6dfaf9aeb21077a7f6d5ce489fa MD5 3350000 2023-07-31 08:26:21 https://pure.iiasa.ac.at/id/eprint/18933/1/PIIS2590332223003019.pdf 18933 1 1 application/pdf text en public cc_by_nc_nd_4

PIIS2590332223003019.pdf

published 102290 1 312224 document 102290 indexcodes.txt text/x-c dff7df367869f4d93532e15579715691 MD5 13481 2023-07-31 08:36:22 https://pure.iiasa.ac.at/id/eprint/18933/2/indexcodes.txt 18933 2 2 text/x-c other Generate index codes conversion from text to indexcodes en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/102279 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/102279 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/102279 archive 353 disk0/00/01/89/33 2023-07-31 08:27:46 2024-09-09 12:50:40 2023-07-31 08:27:46 article show Oshiro K. Fujimori S. 8258 0000-0001-7897-1796 Hasegawa T. Asayama S. Shiraki H. Takahashi K. Alternative, but expensive, energy transition scenario featuring carbon capture and utilization can preserve existing energy demand technologies pub ECE S3 TISS carbon capture and utilization; direct air capture; hydrogen; net-zero emissions; scenarios; synthetic fuels To reach net-zero carbon emissions, most climate change mitigation scenarios model a rapid transition from hydrocarbon-based energy to renewables, wide-scale electrification, and offsets to mitigate residual emissions. This requires phasing out existing hydrocarbon infrastructure and adjustments to electrification. Carbon capture and utilization (CCU) to produce synthetic fuels could be an alternative way to reach net zero while maintaining some existing energy infrastructure and minimizing the societal transition required, yet such scenarios remain unexamined. Here, we analyzed a CCU-based net-zero emissions scenario using a global energy system model. We find that synthetic fuel could meet 30% of energy demand by 2050, resulting in maintaining some existing technologies in energy demand sectors. Meanwhile, this scenario requires rapid upscaling of non-biomass renewables and direct air capture. The CCU-based scenario could be an alternative pathway; however, it involves multiple challenges related to technological feasibility and increased mitigation costs relative to net-zero scenarios using renewables, bioenergy, and carbon dioxide removal. 2023-07-21 published Cell Press doi:10.1016/j.oneear.2023.06.005 2881 public One Earth 6 7 872-883 TRUE 2590-3322 no info:eu-repo/semantics/article